Anatomy Midterm Review

Front

What is the prime mover muscle in inspiration?

Back

The diaphragm.

Front

How is energy obtained for muscle contraction?

Back

Energy is obtained from ATP by myosin ripping off a phosphate.

Front

What allows for the most maneuverability in joints?

Back

Ball and socket joints.

Front

How do enzymes contribute to homeostasis?

Back

Enzymes lower the activation energy and facilitate faster reactions.

Front

What type of tissue is cartilage classified as?

Back

Connective tissue.

Front

What is the role of the diaphragm in respiration?

Back

It contracts to create a vacuum that allows air to enter the lungs.

Front

What is ATP and its role in muscle contraction?

Back

ATP (adenosine triphosphate) provides the energy needed for muscle contraction.

Front

What is the function of calcium in muscle contraction?

Back

Calcium binds to troponin, causing tropomyosin to move and expose binding sites on actin.

Front

What type of joint is an example of a hinge joint?

Back

The elbow joint.

Front

What is the significance of the sarcoplasmic reticulum in muscle cells?

Back

It stores and releases calcium ions during muscle contraction.